After a three-year engagement, Jennifer Hudson has abandoned plans to walk down the aisle.

The American Idol alum, 30, and WWE star David Otunga – who have a 2-year-old son, David jr. – are on the outs, clashing over Jennifer’s career obsession, commitment issues and reluctance to have more children.

“They were going to tie the knot in August in Jennifer’s hometown of Chicago… but it’s not going to happen,” an insider reveals.